Apparatus for mixing gasses and liquids
OwnerBlair H. Hillsinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for mixing gas and liquid is disclosed. The apparatus may have a plurality of blades rotated about a common shaft. The blades may have a forward portion, which cuts through a liquid, and a trailing portion, which forms the leading part of a gas cavity. The gas cavity is in communication with a gas inlet and the bulk fluid. As the blades pass through a liquid, a reduced pressure zone is formed immediately behind the blade. The reduced pressure zone allows air to be aspirated from the gas inlet into the gas cavity adjacent to the blade. Gas in the gas cavity is sheared into discrete bubbles and transferred to the liquid by the action of the trailing blade wake currents.
Claims15
An apparatus for mixing gas and liquid comprising:
- a rotatable shaft having an axis of rotation;
- and
- at least one pumping blade at least partially submergible in the liquid and mounted on the rotatable shaft, the at least one pumping blade comprising a leading edge and a gas cavity trailing the leading edge of the at least one pumping blade,
- wherein the rotatable shaft comprises a central drive shaft and an outer shaft forming a gas inlet in communication with the gas cavity, and wherein rotation of the at least one pumping blade through the liquid causes the liquid to move in a direction substantially perpendicular to the axis of rotation of the rotatable shaft and causes the gas to be entrained in the liquid from the gas cavity.
An apparatus for mixing gas and liquid comprising:
- a rotatable shaft;
- at least one radially pumping blade at least partially submerged in a liquid, the at least one radially pumping blade comprising a leading edge and a gas cavity trailing the leading edge of the at least one radially pumping blade;
- means for attaching the at least one radially pumping blade to the rotatable shaft;
- and
- a gas inlet above the liquid in communication with the gas cavity of the at least one blade.
Dependencies are inferred from the claim text.